why is cgconfig.conf not being read on reboot on 14.04?

Solution 1:

This looks like a regression due to the fix for bug #1096771. There were some init scripts in cgroup-bin in 12.04, which were removed in 13.04. The /etc/init/cgconfig.conf service file contained this in the pre-start script stanza:

/usr/sbin/cgconfigparser -l $CGCONFIG

So it was the cgconfig service from the cgroup-bin package that actually set up your cgroup configuration. cgroup-lite hasn't changed much in between these releases, so I assume it isn't meant to read this configuration. I recommend that you open a bug report (and perhaps write a new Upstart service (or copy the old one) since it's unlikely they'll change this in an LTS release).

Since 12.04 is still supported, you can use the Packages index to download the older version of the package. I have reproduced /etc/init/cgconfig.conf here for convenience:

description "cgconfig"
author "Serge E. Hallyn <[email protected]>"

start on runlevel [2345]

console output

pre-start script
    test -x /usr/sbin/cgconfigparser || { stop; exit 0; }

    CREATE_DEFAULT="yes"
    CGCONFIG=/etc/cgconfig.conf
    if [ -r /etc/default/cgconfig ]; then
        . /etc/default/cgconfig
    fi

    # If we've already run, don't do it again!
    if grep -q /sys/fs/cgroup /proc/mounts; then
        stop
        exit 0
    fi

    [ -r $CGCONFIG ] || { echo "$CGCONFIG is empty"; stop; exit 0; }

    mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroups /sys/fs/cgroup
    /usr/sbin/cgconfigparser -l $CGCONFIG
    if [ "$CREATE_DEFAULT" = "yes" ]; then
        /usr/sbin/create_default_cgroups
    fi
end script

post-stop script
    if [ -x /usr/sbin/cgclear ]
    then
        /usr/sbin/cgclear
    fi
    umount /sys/fs/cgroup || true
end script